Micro-lensed negative-curvature fibre probe for Raman spectroscopy

Karolina Milenko; Stephanos Yerolatsitis; Astrid Aksnes; Dag Roar Hjelme; Jim Stone

doi:10.3390/s21248434

Micro-lensed negative-curvature fibre probe for Raman spectroscopy

Karolina Milenko, Stephanos Yerolatsitis, Astrid Aksnes, Dag Roar Hjelme, Jim Stone

Research output: Contribution to journal › Article › peer-review

6 Citations (SciVal)

Abstract

We developed a novel miniature micro-lensed fibre probe for Raman spectroscopy. The fibre probe consists of a single negative-curvature fibre (NCF) and a spliced, cleaved, micro-lensed fibre cap. Using a single NCF, we minimized the Raman background generated from the silica and maintained the diameter of the probe at less than 0.5 mm. In addition, the cap provided fibre closure by blocking the sample from entering the hollow parts of the fibre, enabling the use of the probe in in vivo applications. Moreover, the micro-lensed cap offered an improved collection efficiency (1.5-times increase) compared to a cleaved end-cap. The sensing capabilities of the micro-lensed probe were demonstrated by measuring different concentrations of glucose in aqueous solutions.

Original language	English
Article number	8434
Journal	Sensors
Volume	21
Issue number	24
DOIs	https://doi.org/10.3390/s21248434
Publication status	Published - 31 Dec 2021

Bibliographical note

Funding Information:
Funding: The Research Council of Norway is acknowledged for its support for the Double Intraperitoneal Artificial Pancreas project (Centre for Digital Life Norway), project number 248872. We also acknowledge support from the UK Engineering and Physical Sciences Research Council (EP/S001123/1).

Keywords

Fibre probe
Hollow-core fibre
Raman sensing

ASJC Scopus subject areas

Analytical Chemistry
Information Systems
Atomic and Molecular Physics, and Optics
Biochemistry
Instrumentation
Electrical and Electronic Engineering

Access to Document

10.3390/s21248434Licence: CC BY

Cite this

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title = "Micro-lensed negative-curvature fibre probe for Raman spectroscopy",

abstract = "We developed a novel miniature micro-lensed fibre probe for Raman spectroscopy. The fibre probe consists of a single negative-curvature fibre (NCF) and a spliced, cleaved, micro-lensed fibre cap. Using a single NCF, we minimized the Raman background generated from the silica and maintained the diameter of the probe at less than 0.5 mm. In addition, the cap provided fibre closure by blocking the sample from entering the hollow parts of the fibre, enabling the use of the probe in in vivo applications. Moreover, the micro-lensed cap offered an improved collection efficiency (1.5-times increase) compared to a cleaved end-cap. The sensing capabilities of the micro-lensed probe were demonstrated by measuring different concentrations of glucose in aqueous solutions.",

keywords = "Fibre probe, Hollow-core fibre, Raman sensing",

author = "Karolina Milenko and Stephanos Yerolatsitis and Astrid Aksnes and {Roar Hjelme}, Dag and Jim Stone",

note = "Funding Information: Funding: The Research Council of Norway is acknowledged for its support for the Double Intraperitoneal Artificial Pancreas project (Centre for Digital Life Norway), project number 248872. We also acknowledge support from the UK Engineering and Physical Sciences Research Council (EP/S001123/1). ",

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day = "31",

doi = "10.3390/s21248434",

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AU - Milenko, Karolina

AU - Yerolatsitis, Stephanos

AU - Aksnes, Astrid

AU - Roar Hjelme, Dag

AU - Stone, Jim

N1 - Funding Information: Funding: The Research Council of Norway is acknowledged for its support for the Double Intraperitoneal Artificial Pancreas project (Centre for Digital Life Norway), project number 248872. We also acknowledge support from the UK Engineering and Physical Sciences Research Council (EP/S001123/1).

PY - 2021/12/31

Y1 - 2021/12/31

N2 - We developed a novel miniature micro-lensed fibre probe for Raman spectroscopy. The fibre probe consists of a single negative-curvature fibre (NCF) and a spliced, cleaved, micro-lensed fibre cap. Using a single NCF, we minimized the Raman background generated from the silica and maintained the diameter of the probe at less than 0.5 mm. In addition, the cap provided fibre closure by blocking the sample from entering the hollow parts of the fibre, enabling the use of the probe in in vivo applications. Moreover, the micro-lensed cap offered an improved collection efficiency (1.5-times increase) compared to a cleaved end-cap. The sensing capabilities of the micro-lensed probe were demonstrated by measuring different concentrations of glucose in aqueous solutions.

AB - We developed a novel miniature micro-lensed fibre probe for Raman spectroscopy. The fibre probe consists of a single negative-curvature fibre (NCF) and a spliced, cleaved, micro-lensed fibre cap. Using a single NCF, we minimized the Raman background generated from the silica and maintained the diameter of the probe at less than 0.5 mm. In addition, the cap provided fibre closure by blocking the sample from entering the hollow parts of the fibre, enabling the use of the probe in in vivo applications. Moreover, the micro-lensed cap offered an improved collection efficiency (1.5-times increase) compared to a cleaved end-cap. The sensing capabilities of the micro-lensed probe were demonstrated by measuring different concentrations of glucose in aqueous solutions.

KW - Fibre probe

KW - Hollow-core fibre

KW - Raman sensing

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Micro-lensed negative-curvature fibre probe for Raman spectroscopy

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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Micro-lensed negative-curvature fibre probe for Raman spectroscopy

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Projects

Fellowship - Next Generation Endoscopes

Datasets

Dataset for "Micro-lensed negative-curvature fibre probe for Raman spectroscopy"

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